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322 technical articles on Teradata, Snowflake, Databricks, SQL tuning and data warehouse architecture — written from production experience, not vendor decks.

Teradata SQL Tuning: How to Optimize Queries for Stable Runtimes

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Learn how to optimize Teradata SQL Tuning with comprehensive analysis of available tools in this article. Discover the optimal approach for query optimization for both tactical and strategic workloads, as well as methods for eliminating full table scans, reducing skew, and examining the execution plan. Plus, find out how to address common issues like concurrency and misestimation.

Teradata Denormalization for Performance Tuning

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Avoid data warehouse project failures by choosing the right data model. In this article, we explore denormalization techniques for when it makes sense, including repeating groups, prejoins, and derived information. We also discuss alternatives to denormalization, such as Global Temporary Tables and Volatile Tables. Remember, denormalization can improve performance but has significant drawbacks and should be used only when necessary.

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